Solar salary sacrifice hits the mainstream press: what UK employers need to know.

5 min read · Published 11 May 2026 · Updated 15 May 2026. The Express ran a major personal finance piece on 11 May on Heva Energy's solar salary sacrifice scheme — the first UK scheme to extend the salary-sacrifice tax mechanism beyond electric cars to solar panels, home batteries and EV charge points. Since publication, the story has crossed from trade press to mainstream consumer media. Transport + Energy, Solar Power Portal, Birmingham Live, FemaleFirst and MSN have all run coverage, and Heva officially launched the scheme on 15 May. NHS signed up. Demand tripled. Perx is Covase's salary-sacrifice scheme, and it delivers those same home-energy elements in partnership with Heva alongside the electric car itself, all within one Perx offering, on one payroll deduction. So everything the press is describing is something we can deliver to your team this month, with the car included rather than arranged separately, at no employer cost and a recurring National Insurance saving per participating employee.

The numbers The Express is running with

Three worked examples lead the Express piece. They are not theoretical — they are running on real workers' homes:

Worker on £35,000, renting: a home battery for £75 a month through their employer, saving an average £56 a month on energy bills. Even renters can use this — the battery moves with them if they change address.
Worker on £45,000, homeowner without solar: a 15kWh battery that stores cheap overnight electricity and releases it during peak hours — £75 a month, average saving £68.
Higher earner on £60,000 with an electric company car: the full package — solar panels, battery, EV charge point — for £123 a month net, generating £171 a month in energy savings.

The mechanism is the same one that put 200,000+ UK workers into electric cars over the last three years: gross-salary sacrifice. Income tax and National Insurance never reach the sacrificed slice of pay, so a £75 monthly cost is funded from a salary deduction that would have lost roughly 30–50% to HMRC anyway.

For higher-rate taxpayers, the headline saving is 40% income tax plus 2% National Insurance. For anyone still paying a student loan, the saving rises above 50% because the 9% student loan deduction is also avoided on the sacrificed amount. The Express piece quotes one case study who only spotted the student-loan upside after he'd signed up.

Why now, specifically

Three things changed in the first half of 2026 that turned this from a nice-to-have into something employers should look at this month:

1. ECO4 ended in March 2026. The grant scheme that funded retrofit energy efficiency improvements for millions of households is gone.
2. The Warm Homes Plan's 0% solar loans won't be fully operational until 2027. The replacement isn't ready.
3. Energy bills are climbing again. The Express piece sits inside a broader package on doubled household bills and is the second piece on the same hook in that period.

Salary sacrifice has been sitting in the tax code for years. Heva, and now Perx, simply applied it to home energy systems. As Ian Napier, co-founder of Heva, put it in the article: "Households needed a solution now, not a promise."

What the case studies look like in practice

Two named workers feature in the Express piece. Both are worth reading because they make the mechanics concrete.

Ryan Griffin, 29, MD of OVAGLAS Group (Yorkshire): wanted a Tesla Powerwall 3 + 6kW solar array. Retail quotes around £17,000. Through Heva's salary sacrifice scheme, net cost over 36 months: £8,700 — a £8,300 saving, or roughly £230 per month off what he'd have paid otherwise. He tried it on his own house first, then opened the scheme to his 20 staff. More than half have signed up. His system now exports £175 per month to the grid in summer months.

James Green, 36, sales manager at Forktruck Solutions (Crewe): 9.4kW solar + Tesla Powerwall 3. Retail £16,500, net cost £9,149. Annual electricity bill £2,000 → £800. £7,300 saved in tax. And — the angle most accountants don't volunteer — he kept his family safely under the £100,000 adjusted net income threshold that protects 30 hours free childcare and the Tax-Free Childcare top-up. That's another £6,000 a year retained, on top of the tax and energy savings.

That childcare-threshold trick is the genuine sleeper insight in the piece. For higher-earning parents the £100k cliff edge is the single most expensive £1 of income in the UK system. Salary sacrifice — for an EV, for solar, ideally for both — is one of the few legal levers that pulls you back to the right side of it.

Where Perx fits

Perx is Covase's salary-sacrifice scheme. The home-energy elements are delivered in partnership with Heva, with the same employer mechanics, the same installer network and the same tax treatment. What Perx adds is the electric car itself, managed in life by Orbis IO's connected-vehicle-data platform — which means a single employer relationship for businesses that want salary sacrifice for the car, the EV charge point, the home battery and solar to all run through one pipe, not four.

For a UK business with 20–500 employees, the unit economics are straightforward:

No employer cost. The scheme is gross-deducted from employee salaries.
Employer National Insurance saving of £774 to £1,595 per participating employee per year on our published illustrations, depending on the package. A real, recurring saving — not a credit, not a deferral.
No installer admin. Heva's installer partners handle quoting, scheduling, grid permissions and commissioning. Two-week typical install windows.
Optional bundling with other Perx benefits — EV salary sacrifice, EV charge points, home batteries, solar — through a single employee portal.

NHS and the National Lottery Community Fund have already signed up as Heva employers. Demand tripled in the month before the May 2026 press wave — coverage has since crossed from trade press into mainstream consumer outlets in 48 hours, and the inbound calls are running ahead of forecast.

What to do if you run a UK fleet or SME

Three concrete moves:

1. If you're the boss, look at it yourself first. Ryan Griffin's instinct — "I wasn't going to ask my staff to sign up to something I hadn't" — is the right one. You also learn the actual employee experience before you advocate for it.
2. Talk to us about a Perx package for your team. Book a 15-minute call at orbisio.co.uk/perx and we'll come back with what your team would save by salary band, and what the per-employee NI saving works out to at your headcount.
3. If you already run EV salary sacrifice with someone else, the home-energy add-on is the cleanest way to expand what you're offering without touching your existing fleet provider. Same employees, same payroll deductions, same payment cycle.

Frequently asked questions

What is solar salary sacrifice and how does it work?

Solar salary sacrifice is a gross-pay deduction arrangement that lets UK employees pay for home solar panels, battery storage and EV charge points through their employer's payroll, before income tax and National Insurance are calculated. The mechanism is the same one used for electric company cars on salary sacrifice. A £75-per-month sacrifice for a home battery costs the employee around £40–£50 in real take-home terms after the tax saving; for higher-rate taxpayers and those still repaying student loans, the saving is bigger still. The employer also saves Class 1 secondary NI, which on our published illustrations is £774 to £1,595 per participating employee per year depending on the package.

Who is Heva Energy and what is their scheme?

Heva Energy is the first UK provider to extend the salary-sacrifice tax mechanism from electric cars to home energy systems — solar panels, home batteries, and EV charge points. The Express ran a major personal finance feature on the scheme in May 2026 after NHS signed up and consumer demand tripled in a month. Perx is Covase's salary-sacrifice scheme, delivering the home-energy elements in partnership with Heva — same employer mechanics, same installer network, same tax treatment — and adding the electric car alongside them. Orbis IO's connected-vehicle-data platform manages each car in life, so a business gets a single employer relationship across cars, chargers, batteries and solar rather than one scheme for the car and another for the roof.

How much does an employer save on solar salary sacrifice?

The employer saving is Class 1 secondary National Insurance at 15%, removed from the sacrificed slice of pay. On a £75-per-month battery sacrifice that is £135 per year per employee; on a £200-per-month full bundle (battery, solar and EV charger) it is £360 per year per employee; and where the employee takes the EV package as well, our published illustrations show £774 to £1,595 per year. For most UK SMEs the employer NI saving covers the scheme administration cost once a handful of employees participate.

Can renters use solar salary sacrifice?

Yes — for the battery and EV charger components, although not solar panels. A home battery installed in a rented property can be removed and re-installed if the tenant moves, and the salary sacrifice agreement transfers with the employee rather than the address. Solar panels are a fixed installation and depend on the property owner's permission, so they are typically taken by homeowners. The Express piece highlights a £35,000-earning renter saving £56 a month on energy bills through a battery-only Heva package — battery sacrifice is one of the simplest entry points for employees who can't access the full bundle.